pyramid vs Pyramid

pyramid and Pyramid both are nouns.

Word	Noun	Adjective	Verb	Adverb
pyramid	Yes	No	Yes	No
Pyramid	Yes	No	No	No

pyramid (noun)	Pyramid (noun)
(stock market) a series of transactions in which the speculator increases his holdings by using the rising market value of those holdings as margin for further purchases	a massive monument with a square base and four triangular sides; begun by Cheops around 2700 BC as royal tombs in ancient Egypt
a polyhedron having a polygonal base and triangular sides with a common vertex

pyramid (verb)	Pyramid (verb)
increase rapidly and progressively step by step on a broad base
arrange or build up as if on the base of a pyramid
enlarge one's holdings on an exchange on a continued rise by using paper profits as margin to buy additional amounts
use or deal in (as of stock or commercial transaction) in a pyramid deal